Digi-Tron ULPH Operation Manual

Human Scale

Operation Manual

April 2007

Digi-Tron Specialists in Industrial Weighing

www.digitronbalancas.com.br

Index

1. Introduction………3

2. Installation………...4

Choosing an adequate location………….4
Verifying electricity………………..4
Verifying connections and cables………..5
Plugging in the scale…………………..5

3. Operation……………….6
Keypad functions……6
Zeroing……………6
Automatic zero………..6
Manual zero………………..6
Weighing……………6
Setting the clock………………7
RS 232 Serial Port………….7
Communication with a computer- terminal mode………8
Label printer…………..8

4. Troubleshooting…………………..10
Error Zero……………………10
Error Five……………..10
Error Six………………..10
Error Seven……………………..10
Error Eight…………………..11
Low battery……………………..11
Excess Weight……………….11
Underweight……………..11
Blinking display……………….11
Display with some segments dimly lit…………………..12
Scale fails to turn on…………………….12
Scale turns off after weighing or counting………….12

1. Introduction

Dear User,

This manual contains instructions on how to install and operate the Human Scale model ULPH,
designed with technology and quality standards set by Digi-Tron, a company specialized in
precision instruments.

Its proper functioning, however, depends also on the treatment and care given by the user, as much
in the installation as in its daily use. It is, therefore, necessary to carefully read all the instructions
contained in this manual, as well as abide by them.

Only technicians certified by IPEM (Instituto de Pesos e Medidas/ Weights and Measures Institute)
are allowed to open the instrument’s seal. The breaking of the seal by persons not certified by
IPEM will result in the automatic annulment of the Digi-Tron guarantee and violates federal laws.

We recommend that any technical problem be directed to Digi-Tron´s Technical Assistance
Department so that we may direct you to an authorized technician.

2. Installation
Your product is a mass weighing instrument and you should take certain cautions during its use.
Before putting your scale to use, it is important to observe the following items:

- Verify that the instrument has not suffered any damage during delivery.

- Check accessories

- Take off protective insulation. (Instruments with dimensions up to 700x700mm)

- Fasten the articulated feet that are in the indicator’s packaging. (Scales 800x800mm

and up, follow the following instructions)

- Adjust the level and then lock the articulated feet using the nuts and bolts if the case

may be.

- The scale cannot undergo any kind of impact or overweighing on the weighing

platform so that there is no damage to the load receptor. Always place cargo as close
to the center of the scale as possible so that there is no lateral force on the load
receptors and so that you get the best weight distribution over the entire scale.

- Do not use the keypad with sharp objects in order to avoid damages to the keypad’s

circuits.

- The cleaning and keeping of the entire scale will also avoid unnecessary

maintenance. When possible, clean the scale with a damp cloth.

- Always clean the scale with the power cord unplugged.

- Always make sure that the scale’s cables and connectors are in perfect condition for

they are essential for proper function.

Maximum performance of your instrument depends on proper installation.

2.1 Choosing an adequate location
The place where the scale is installed must be level. In the case of an uneven surface, compensate
adjusting the leveling or articulated feet that are underneath the base.

Inaccuracies in weighing can be caused by an uneven scale.

Place the scale platform away from strong air currents. (Bench scales)

Place the scale platform away from obstructing objects that my make access to the scale difficult.

2.2 Verifying electricity
It is highly recommended that the instructions below be followed:

- The instrument has an automatic power supply, upon plugging it in; the electric

current will adjust automatically.

- The range of operation of the scale is from 85 to 250 V 50/60 Hz.

- In an industrial environment, be careful not to plug the scale into a 380V circuit.

- The electricity source should be stable and grounded. The lack of grounding could

result in the burning of your instrument, in the case of a power surge.

- In the case of unstable electricity, use an electric stabilizer to plug in your scale.

- Don’t take off the ground wire from the power plug. It will disable the guarantee.

2.3 Verifying Connections and cables
The weighing platform has a cable with a circular plug with 8 prongs at one end. This end should
be plugged into the back of the weight indicator, in the jack marked Load Cell.

After connecting, thread the plug so that it does not slip during use. If the plug is not well situated
the scale may read weight inaccurately.

2.4 Plugging In the Scale
Having made the previous verifications and everything being in order, the scale may be plugged in.

- Plug in the scale and then turn the on/off (liga/desliga) key located in the back of the

indicator.

- The word “digi-tron” will appear on the screen and the scale’s CPU version followed

by a countdown.

- During the countdown, verify that all of the numbers light up completely.

- After the countdown, a zero should appear on the display, 0.000, 0.00 0.0, or 0,

depending on your scare’s capacity.

- To start weighing, the “kg” and “zero” indicators should be lit up. From this

moment on, the scale is ready to be used.

- During installation or use, problems may occur. Should this happen, look for a

solution in the Troubleshooting section (item 5 in the manual).